TIME GAIN COMPENSATION CIRCUIT IN AN ULTRASOUND RECEIVER
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United States of America Patent
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Issued Date -
Sep 13, 2018
app pub date -
May 16, 2018
filing date -
May 16, 2018
priority date (Note) -
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Abstract
The disclosure provides a time gain compensation (TGC) circuit. The TGC circuit includes an impedance network. A differential amplifier is coupled to the impedance network. The differential amplifier includes a first input port, a second input port, a first output port and a second output port. A first feedback resistor is coupled between the first input port and the first output port. A second feedback resistor is coupled between the second input port and the second output port. The impedance network provides a fixed impedance to the differential amplifier when a gain of the TGC circuit is changed from a maximum value to a minimum value.
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